What is the value of x/3y, when x = 18 and y = 3? 3/18 <- this means three over 18 if you don't know 2 3 6

Can someone pls ! pls answer all. no explanation needed..

What expression is equivalent to (2x-1)(x-3)?

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a. about 4 b. about 8 c. about 40 d. about 21